Heel cup



FIG. 1 is a perspective view of a heel cup in accordance with the present invention;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a first side elevational view thereof;

FIG. 5 is a second side elevational view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a top plan view thereof. 

The ornamental design for a heel cup, as shown and described. 